package com.example.springdemo.Controller;
import com.auth0.jwt.JWT;
import com.example.springdemo.entity.User;
import com.example.springdemo.entity.VO.LoginUser;
import com.example.springdemo.service.UserService;
import com.example.springdemo.utils.JWTUtils;
import com.example.springdemo.utils.PassToken;
import com.example.springdemo.utils.ResponseResult;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletRequest;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.TimeUnit;

@RestController
public class UserController {
    @Autowired
    UserService userService;
    @Autowired
    RedisTemplate<String, Object> redisTemplate;

//    @GetMapping("/test")
//    public String test() {
//        //读取redis中的数据
//        String s = (String) redisTemplate.opsForValue().get("data");  //key的值是name
//        redisTemplate.opsForValue().set("age", "21", 20, TimeUnit.SECONDS);
//        return s;
//    }

    @PostMapping("/login")
    public ResponseResult<String> login(@RequestBody LoginUser loginUser) {
        //先判断验证码是否正确
        //1.如何从redis取出保存的验证码
        String storeCode = (String) redisTemplate.opsForValue().get("captcha_codes:" + loginUser.getUuid());
        System.out.println(storeCode + loginUser.toString());
        //2.用户输入的验证码和storeCode比对
        if (loginUser.getCode().equals(storeCode)) {
            User u = userService.getUser(loginUser);
            if (u != null) {
                Map<String, String> map = new HashMap<>();
                map.put("userid", u.getUserId() + "");
                map.put("username", u.getUserName());
                String token = JWTUtils.getToken(map);

                redisTemplate.delete(storeCode);
                return ResponseResult.createBySuccess(200, token, "登录成功");
            }
            return ResponseResult.createBySuccess(500, "", "账号或者密码错误");
        } else {
            return ResponseResult.createBySuccess(500, "", "验证码错误");
        }
    }

    @GetMapping("/getInfo")
    public ResponseResult<String> getInfo(HttpServletRequest request){
//        Map<String,Object> map = new HashMap<>();
//        map.put("name","张三");
//        map.put("avatar","1.jpg");
        //如何根据token获取用户ID
        //从token获得id
        String token = request.getHeader("Authorization");
        System.out.println(token+"  ");
        String id= JWT.decode(token.substring(token.lastIndexOf(" ")+1)).getClaim("userid").asString();
        User user = userService.getUserById(Integer.parseInt(id));
        return ResponseResult.createBySuccess(200,id,"查询成功");
    }


}
